[MANUSCRIPT--ARITHMETIC]. McCORMICK, WILLIAM HAMPTON. Arithemetic manuscript containing hundreds of calculations and equations. N.p. (probably American), circa 1820. Approximately 100 leaves, mostly written on rectos and versos. Folio, partially bound in plain blue wrappers (worn), the remainder in loose gatherings. An interesting example of a student's book apparently kept (and added to) over a period of several years.